In the Islamic State’s latest gruesome propaganda video, ISIS burns four Iraqi men to death by chaining them upside down and setting fire to a trail of fuel that engulfs them in flames.

The four men, who are chained around their wrists and ankles, are forced to watch as the flames lick towards them after a masked ISIS militant used a large torch to ignite the trail.

In the common orange jumpsuit attire the four prisoners — identified as fighters in the pro-government Popular Mobilisation forces from southern Iraq — each introduce themselves to the camera, giving their names and a brief description of their role in fighting ISIS.

They were then suspended from a swingset-like metal structure by chains attached to their hands and feet.

Underneath the men, a line of fuel was poured and slight patches of straw were added in preparation for the flames.

The video shows slow motion footage as the fire begins to burn up the line of fuel, heading rapidly towards the men. The final few seconds of footage show the men being agonizingly burnt to death by the flames.

Prior to their deaths, the prisoners are forced to watch several videos showing the mutilation of the bodies of dead ISIS fighters by members of the Iraqi army and allied Shi’a militias.

One video shows the corpse of a dead jihadi hanging upside down as several soldiers, believed to be members of the Iraqi army, watch as the body is set on fire.

The prisoners are also shown footage of Abu Azrael — the poster boy of the Imam Ali Brigade, which is an Iranian-backed brigade fighting with the Iraqi army against ISIS — hacking the flesh off the body of a charred ISIS fighter.

He is shown using a large sword to carve at the dead body and turns to the camera, saying, “ISIS this will be your fate, we will cut you like shawarma.”